.box {
  width: 600px;
  height: 400px;
  border: 3px solid black;
  margin: 100px auto;
  position: relative;
  overflow: hidden;
}
ul {
  width: 500%;
  height: 100%;
  position: absolute;
  left: 0;
  top: 0;
  overflow: hidden;
}
.box>ul>li {
  width: 600px;
  height: 400px;
  float: left;
  font-size: 100px;
  line-height: 400px;
  text-align: center;
  color: #fff;
}
.box>ol {
  /* width: 200px; */
  height: 30px;
  background-color: rgba(0, 0, 0, 0.5);
  border-radius: 15px;
  position: absolute;
  left: 50%;
  bottom: 5%;
  transform: translateX(-50%);
  display: flex;
  justify-content: space-around;
  align-items: center;
}
.box>ol>li {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background-color: #fff;
  /* float: left; */
  cursor: pointer;
}
.box>ol>li.active {
  background-color: rgb(168, 110, 68);
}
#next {
  width: 100%;
  height: 100px;
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 50px;
  color: #fff;
  z-index: 2;
}
#next>p {
  cursor: pointer;
}